Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 04 May 2015, 10:56

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# is 2^x greater than 100? 1. 2^sq.root of x=8 2. 1/2^sq.root

Author Message
TAGS:
Intern
Joined: 23 Sep 2004
Posts: 5
Followers: 0

Kudos [?]: 0 [0], given: 0

is 2^x greater than 100? 1. 2^sq.root of x=8 2. 1/2^sq.root [#permalink]  09 Nov 2004, 17:03
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
is 2^x greater than 100?

1. 2^sq.root of x=8
2. 1/2^sq.root of x <0.01

The answer is D. I understand #1 but i just don't get #2. The explantion says that #2 implies

2^sq.root of x is > 1/.01 or

2^x>100

I dont understand this logic. Can anyone help?
Thanks.

Tim
Intern
Joined: 08 Nov 2004
Posts: 46
Location: Montreal
Followers: 0

Kudos [?]: 10 [0], given: 0

It's a rule

x>y

implies:

1/x < 1/y

So, in our case:

1/2^sqrt(x) < 1/100

implies

2^sqrt(x) > 100
Director
Joined: 07 Nov 2004
Posts: 694
Followers: 4

Kudos [?]: 29 [0], given: 0

Try using numbers, for instance

4>2, but if you look at their inverse 1/4<1/2

which demonstrates the rule, x>y => 1/x<1/y
Joined: 31 Dec 1969
Location: India
Concentration: General Management, Strategy
GMAT 1: 710 Q49 V0
GMAT 2: 740 Q40 V50
GMAT 3: 700 Q48 V38
GPA: 3.6
Followers: 0

Kudos [?]: 89 [0], given: 87116

DS-Feeling stupid [#permalink]  09 Nov 2004, 19:17
Thank you both. That was a real help!!
DS-Feeling stupid   [#permalink] 09 Nov 2004, 19:17
Similar topics Replies Last post
Similar
Topics:
1 Is x^2>x (1) x^2 is greater than 1 (2) x is greater than -1 2 14 May 2012, 09:39
5 If x is not equal to 1, is x^2/(x-1) greater than x? 4 18 Feb 2011, 10:58
Is x^2 greater than x? 1) x^2 is greater than 1. 2) x is 4 21 Apr 2008, 18:24
Is 2^x greather than a 100? 1) 2 sqrt(x) = 8 2) 1 / 2^x < 2 02 Dec 2007, 12:27
is 2^x greater than 100? 1) 2 sqrt(x) = 8 2) 1/(2^x)<0.01 2 21 May 2006, 13:43
Display posts from previous: Sort by